Improvement in window-screens



2 Sheets-Sheet 1.

R. J. STUART. Window Screen.

No. 201,714. Patented March 26, 1878 N.PE|'ERS, PHOTGUTHOGRAPHER,WASHINGTON, D. C,

R. J. STUART. Window Screen.

2 Sheets-Sheet 2.

Patented March 26,1878

Zia M]? N. PETERS. PHOTO-LITHOGRAPHER, WASHINGTON, D. C

UNITED: STATES PATENT OFFICE.

ROBERT J. STUART, OF YONKERS, NEW YORK.

IMPROVEMENT IN WINDOW-SCREENS.

Specification forming part of Letters Patent No. 201,714, dated March26, 1878 application filed September 1, 1877.

To all whom it may concern:

Be it known that I, ROBERT J. STUART, of Yonkers, county of Westchester,and State of New York, have invented certain Improvements inWindow-Screens, of which the following is a specification:

My invention relates to screens to be applied to windows for excludingdust, insects, &c., from houses. Its objects are to facilitate themanipulation of such screens, and render the same capable of beingreadily elevated without removing them from the sash, and to improvethem in other respects, as will be fully hereinafter set forth.

My invention consists, first, in a curtain, of netting, gauze, or othersuitable material, of the width of the window, attached to the rail ofthe sash, in combination with a device or devices for keeping suchcurtain extended over the space to be covered by it secondly, of acurtain, of netting, gauze, or other suitable material, secured by oneedge to the rail of the sash, and having attached to its opposite edge abar or rod of the width of the window, which bar is capable of beingraised andlowered, and is guided between the beading strips of thewindowframe; thirdly, of the means of retaining in its position, whenraised, the bar at the lower edge of the curtain-screen; fourthly, ofthe means for holding the curtain screen extended over the space to becovered by it; and it further consists in sundry other improvements inthe construction, combination, and operation of the parts, as will befully hereinafter set forth and specified.

Figure 1 is a vertical section of a window frame and sashes with myimprovements thereto attached. Fig. 2 is a front elevation of one sideof the same. Fig. 3 is an enlarged View of a sash rail and frame,showing fully the operation of my improvements in screens. Fig. at is ahorizontal section of one side of the window-frame. Figs. 5, 6, 7 8, and9 are views in detail.

Similar letters of reference indicate like parts in all the figures.

A represents the frame of the window, provided with the usual guidebeadsa a, for

guiding the movement of the sashes, repre sented by B. O is thecurtain-screen, consistlng of netting, gauze, or other suitable material. This curtain is just the width between the sides of thewindow-frame, and is attached by its upper edge to the lower bar ofsash, it is laid over the groove in the bar D, and the strip E is forcedinto the groove, the

material being thereby clamped between the sides of the groove and thoseof the strip E. The bar and strip are then screwed onto the sash-rail,the screw 12 passing through the bar and strip and clamping the latteragainst the sash-rail, as shown, thereby precluding all possibility ofthe netting becoming loose.

In Fig. 6 is shown another method of securing the bar to the sash-railwhere screws are objectionable, which consists of staples or clamps 0,between which and the sash-rail the bar is forced; and it will beobserved that, as in Fig. 5, there would be no possibility of the stripE becoming loose in its groove, as it is clamped against the sash-rail.

F is a bar attached to the lower edge of the curtain-screen, either bytacking or by the method above described. This bar is of a length equalto the width between the sides of the window-frame, and is retained inits position as regards lateral movement by means of the beads a a ofthe window-frame. Its ends are free, and it may be moved up and down ortaken out from between the beadingstrips by tilting it in a verticalplane, so as to allow of its removal laterally. It may be of such aweight as to keep the curtain-screen properly distended by the action ofgravity; but for stretching the curtain I prefer employing positivedevices to hold the bar down and keep the curtain distended. Suchdevices are shown in Figs 7 and 8. Y

Fig. 7 is a front elevation of a catch, consisting of a hook, G, whichis attached to the bar F, and engages a pin, H, which projects from ashort standard, H, secured to the window-sill, thus keeping the bar downand the curtain-screen properly stretched, the bar F being held betweenthe stop-beads of the Windowframe and the standard H, thus preventingany lateral movement in said bar.

In Fig.8 is shown another means for effecting the same object. In thisinstance the bead on each side of the window-frame is notched, as shownat d, Fig. 8, and the edge of the bar slipped under the shoulder of saidnotch, thereby holding it (the bar) down. The bar F is less in thicknessthan the width between the beads a a, and thus can rock between themthatis, from one bead to the other.

0, Figs. 1 and 3, is a notch cut in the bead a, for retaining, whenelevated to that point, the bar F, the lower edge of which rests on theshoulder of the notch, while the top edge rests against the other bead,as shown at Fig. 3.

As the side edges of the curtain-screen are generally not selvaged, itis necessary to support it at these edges, or otherwise it would, fromrepeated stretching, become baggy and loose. I therefore remove thestrain on the edges by'rollin g the same, as shown at f, Fig. 9, or havea cord, f, extending from the upper to the lower bar, for receiving anygreat strain in stretching the screen.

Fig. 3 shows, in dotted lines, the screen and bar raised, the latterresting in the before-described notch.

The operation of the devices will be eviden from the foregoingdescription.

It is obvious that, instead of being attached to the sash-rail, thescreen may be supported at its upper edge to a stationary bar extendingfrom one side of the window-frame to the other. I

I claim- 1. In combination with a window-sash, a

curtain-screen, of netting, gauze, or other suitable material, of thewidth of the window, attached to the lower bar of the upper or outersash, and provided at its lower edge with a bar, F, and latch G, forkeeping it (the curtain) properly extended over the space to-be coveredby the same, constructed and operating substantially in the mannerdescribed and specified.

2. In combination with the window-sash, a curtain-screen, of netting,gauze, or other suitable material, of the width of the window, attachedto-the rail of the sash by one edge, and having at the opposite edge abar, F, extending across the window and guided between the beading ofthe window-frame, constructed and operating substantially in the mannerdescribed and specified.

3. The combination, with the netting or gauze screen B and bar F, ofthelatch G and pin H, standard H, and stop-bead a, constructed andoperating substantially in the manner-described and specified.

4. The combination, with the beadingstrips a a, one of which, a, isnotched, as described, of the bar F, of a thickness less than the spacebetween the beading-strips, whereby, when its lower edge is supported bythe shoulder of the notch, its upper edge may incline and rest againstthe other bead, constructed and operating substantially in the mannerdescribed and specified.

ROBERT J. STUART.

Witnesses.

CHAS. J. GILMORE, ALFRED SHEnLocK.

